Cylinder lock



Oct. .19 1926. 1,603,635

E. H. NORUNG I CYLINDER Locx Filed Feb. l2. 1924 Patented 9ct., 19, 1925.

Mbit? STF EINER HANSEN NORUNG, OF VALBY, NEAR COIPFJNHAGEN, DENMARK.

CYLINDER LOCK.

Application 1ed February 12. 1924, Serial No. 692,389, and in Denmark February 12,1923.

The present invention relates to a new lock ot the kind in which two series of tumblers orlocking members are employed. The peculiar 'feature of the new lock lies therein that the tumblers in the one series, after they have been set into a given position can be displaced as a whole a certain distance relatively to the other series, so that the first tumbler in the one series will come into engagement with a second tumbler in the other series and so on, and this displacement will, directly or indirectly seat in such a manner on the bolt of the lock, that the bolt is moved or released from a retaining mechanism so that it then can be moved by a separate handle. y

The lock may be employed as spring-lock, door-lock, pad-lock, ycombination-lock and the like.

In the accompanying drawing a constructional form ot the lock is shown. In this drawing- Fig. 1 is a Jfront view of a door-lock.

Fig. 2 isa longitudinal section of the lock on the position at which the lock is locked.

3 is a similar view ot the lock in unlocked position.

Fi gs. 4 and 5 show the member -which couples the lock with the bolt, in front and side elevation, respectively.

Figs. 6, 7 and 8 show in front elevation and two sectional views which are taken at right angles to each other, a tumbler of the one series of tumblers. v

Figs. 9 and 10 show in front view and section, respectively a tumbler ot the other series of tumblers.

Figs. 11 and 12 show a raw blank for a key in top and side view, respectively.

Fig. 13 shows the linished key produced by twisting the blank shown in Figs. 11 and 12.

The mechanism of the lock is enclosed in a cylindrical casing 41, which, on its front, has a projectingcollar 42, which is visible on the outside ot the door. At its rear end the casing 41 is provided with screw threads on which a nut 43 may be screwed. A pin 44 prevents the casing from being turned relatively to the door into whichV it has been itted.

Nithin the casing 41 is itted a cylindrical sleeve 45 to which is secured a pin 46, which engages Vin a slot 47 in the ca sing41, parallel to the axis. The sleeve 45 is somewhat 51" shorter than the interior of the casing 41,

and it can, therefore, be shifted to and lfro therein, but cannot be turned relatively thereto. The sleeve has, on its inside recessed grooves 48 of which there is one less, than there are inside tumbler-s 56, and into each of' these grooves is placed a tumbler 49, Figs. 9 and 10. This tumbler consists of a' piece ot a ring, the shape of which corresponds to the shape of the groove 48. On the inner side of this piece ot ring are two teeth 50 which project into the interior space of the sleeve 45.

In the rear wall 51 of casing 41 is journalled a revoluble body 52, Figs. 4 and 5, the outer end of which is suitably connected with the bolt of the lock, not shown in the drawing, in such a manner, that the bolt is shot forward or withdrawn, respectively, when ythe Vsaid body 52 is turned. This body 52 has a cylindrical part 53, situated within the casing 41 and within the sleeve 45. The Fart 53 has a radially disposed pin 54 which projects into` an angle-shaped slot 55 in the sleeve 45. It is therefore only possible for the body 52 to be turned when the sleeve 45 is simultaneously displaced longitudinally.

Within the sleeve 45 are disposed a series o'E ring-shaped tumblers 56, Figs. 6-8. These are, along' their circumference, provided with teetli and the spaces between the teeth 5 correspond. in shape to the teeth 50, Fig. 9. On each side of the tumblers 56 are two neighboring, continuous teeth gaps 57, whereas all other tooth-gaps are barred by means ot a wall 58, Fig. 7. In the center ot the tumblers 56 is a cylindrical bore 59. which is, on the iront face closed by a wall 66, in which there is a slot 61.

The width ot the tumblers corresponds to the distance from center to center ot grooves 48 on the inside of the sleeve 45. rI`he tumblers 56 arearranged side by side between the cylindrical part 53 and a disc 64, Figs. 2 and 3. On the part 53 is provided a projection 65, and longitudinally extending through the same and a part ot part 53 is a slit 66` Fig. .4.

In the center of the faceplate 42 of the lock there is a circular key-hole 67, in the one side or which there is a notch 68, Fig. 1. Within the bore 67 there is a cylindrical `recess 69, Figs. 2 and 3.

The key belonging to the lock is shown in Fig. 13. It is made of alat piece of metal, has a wedge-shaped point 70 and a stud 71 arranged on the one side. Furthermore it has, as shown in Figs. 11 and 12,'on both sides nuniher ofanotehes T2', thewdistanee from center to center orwhieh corresponds to the Width of the tuniblers 56. Lastly itis, as shown"inf'Figl lf'ftvvisted a' speci-il manner and this twisting is Charatferis'tie for each individua-llock,y or the relative angle-position ofthe tumbler-pairs in Whiehiit was locked.

1When the-key is inserted into the look, the notches/F2 Will he situatedbetiveen the slots 61 in the tuinblers 5S. andthe key is twisted and, atthesainetiine the studlz Willfhave passed .throughjnotch 68 ,and vvill,y he Within thereoess Y Vhen,n03v, the key is turned, allk tuinblers 56 andV the `part 53 will he turned with it A turning Of @12h53, however, is not possible, as. saidv above, `fvvithout thesleeve 'jheing simultaneously displaeed Y longitudinally, and hy this .displaeernentjthe l 'aeether'eotch Qt Similar providedinthe key ho,l ef7, ivli'iehgseeond the stud 71 -vi;

tuniblers 49 which are'lying in the grooves t8 Will `be displaced from their .engagement with one of the tuniblers 56 to an engagenient y with the neighbouring tumbler. 56. This is only possible if thet-eeth 50 .exactly register with the toothfgaps 5,7,.l`ig.y 6, but this will alnfays be the ease, if .it is the propernkey, helonginfrv to the klock, which is beingeinployed. 'If it is a false Akey which has been inserted inte the loelnat least one the tulnblers 5G will bein such a position that the teeth 5 0 .do not registll,` with the tootlngaps? in v:the neighbouring ,tuinbler 56,` and ythe Wall 58 ivillvthen ,preeht longitudinal displaeinent vof the sleeve 4.5, so that a tnrninglof the part '52 and an' unloekng 0f the 100k is not YPossible- The key he removed fromy the lock in thatpositionV Qlllyitt `which. stud l"Il ystands in: front, of notch 68, 1 in thev front AWall- ,of the look easing. The look de'sorilpeil-7 is, therefore,.qbestsuited aslsprng look, If it be 'deSireblethat theley .be removed when the-boit ismithdranfn, ther yet des @91168 series having teeth;

Leoaes the tnniblers 56 ,Will hefturned thus that the slots 61 vvill all he brought to lie parallel AWith the slot 66. When the key is again inserted' into'th'e loek,the tuinhlers will, in

consequence of the peculiar twist of the key,

key, insert Vthe latter into the lovelgand open f this' in Snell manner, ,thatthe belt is drawn haelt.` "Then pull the key ont yof the lock;

the1 key,nr being arrived Qitsgliolding- The@ responding 'pin/71' has also'ljeenrernoved in order to ,enablelthe key.' to be inserted yinto thelock. Non? the look should be fastened hy the new key, Whereafter the latter should be pulled out, andthe pin 71 serewed on to it. Heneeforth the new` key Aonly will he able to open and fastenthe look.

The .invention @an also be employed in inany other yconst rn@tionalv fornis than this shovvn in the accompanying drawing and hereinloefore described,

I elairn: l

l'. In; a loelr, two .series of tuniblers, the tuinblers lin the one series: having teeth, adapted'to engage in the unlocking operatioincorresponding rneans in the tunihlers of the other Vseries to thereby couple the individual'tulnblers olf Vthe first and second series, respectively, in pairs, the tumblers in Vthe one'ofzthefseriesyxvhen s et to a given postiomvloeing displaceahle, all together as a vvWhole, relatively, to the other series by the nioveinent of said tuinblers', so that the first tuinbler'in the' one series will vcorne into engagement with a second tunibier in .the other series v'andY means for withdrawing the holt of the loekfhy vsuoliY'displaeennent.

2. In a loeltivo series of tuinhlers, the tuinhlers in ,the one series having teeth, adaptedto @llgge in the unloe'lring operation, corresponding means inthe tuinblers of flloth'e ,Series ,tlthersby .eiipl the ndivfidnal tnnihlersgof tlie'lirst and seeond series, lspsetiveln in pairs; the; fumbles Of both ,arrange/fl t0 @Haase web ond seriesndivldually anli'n several relak7.,-4 for'. .i 5' .Y ,i i

tive ldifferentpositions of one to the other in the looking operation,A and op@ Qltof 'the ook .by

insert ,the non? key, Onhch the' Collll other series to thereby couple the individual tumblers of the first and second series, respectively, in pairs, a sleeve having slots in which the tumblers in the one series are disposed, said sleeve enclosing the tumblers of the other series, the tumblers of the other series being adjustable by a specially formed key and axially displaceable, all together as a whole relatively to the other series by the movement of said tumblers, and means for withdrawing the bolt of the lock by such displacement.

Li. ln a lock two series of tumblers, the tumblers of the one series having teethadapted to engage in the unlocking operation, corresponding means in the tumblers of the other series to thereby couple the individual tumblers of the first and second series, respectively, in pairs, a sleeve having slots in which the tumblers in the one series are disposed, said sleeve enclosing the tumblers of the other series, the tumblers ot the other series being adjustable by a specially formed key, a casing in which the said sleeve is axially displaceably fitted, a revoluble pin, in the rear wall ot said casing coupled to the bolt of the lock, said pin havn ing means 'for engaging and displacing said displaceable sleeve and means for operating the bolt o'f the lock, by such displacement ot said sleeve.

5. In a lock two series of tumblers, the tumblers of the one series having teeth, adapted to engage in the unlocking operation, corresponding means in the tumblers of the other series to thereby couple the individual tumblers of the first and second series, respectively, in pairs, a sleeve having slots in its inner side in which the tumblers in the one series are disposed, said sleeve enclosing the tumblers of the other series, the tumblers of the other series being adjustable by a specially formed key, a casing .in which the said sleeve is axially displaceably fitted a revoluble pin, inthe rear wall of said casing coupled to the bolt ot the lock, said pin having a transverse stud and said sleeve having an oblique slot in which said stud is engaged, the tumblers enclosed by said sleeve having the shape of rings, and said rings being toothed on their outer face, a wall by which the tooth-gaps of said teeth are substantially closed, said tumblers having a central slot, a key for connection. therein, said key twisted and arranged to set the tumblers into which it is inserted into given positions, said key also having a point in which said point is engageable and said revoluble pin having a slot, and means to operate the bolt of the lock by the displacement of said sleeve.

G. In a lock two series ot tumblers, the tumblers oitl the one series being adapted to engage the tumblers of the other series and thereby be coupled therewith in pairs, a sleeve having slots in which the tumblers in the one series are disposed, said sleeve enclosing the tumblers of the other series, a key to adjust the tumblers of the said other series, a casing in which the said sleeve is axially displaceably fitted a revoluble pin in the rear wall of said casing coupled to the bolt of the lock, said pin having a tranverse stud, and said sleeve having an oblique slot in which said stud is engaged, the tuinblers enclosed by said sleeve having the shape of rings, said rings being toothed on their outer tace, a remaining wall by which the tooth gaps of said teeth are substantially closed, said tumblers having a central slot, a key for insertion in said slot to set the tumblers into which it is inserted, into given positions, said key also having a point, and said revoluble pin having a slot in which said point is engaged the tumblers in the outer series having a tooth corresponding in shape to the gaps between the teeth of the tumblers of the inner series and adapted to engage therein when the said inner series of tumblers is axially displaced, and to operate the bolt of the lock, by the displacement of said sleeve.

7. In a lock two series of tumblers, the tumblers in the one series having teeth, adapted to engage in the unlocking operation, corresponding means in the tumblers of the other series to thereby couple the individual tumblers of the first and second series respectively, in pairs, a key, having the shape of a bar, twisted to an irregular forni, and having wings provided with notches, said notches lying between the tumblers, when the key is inserted in the lock.

In witness whereof he aiiixes his signature.

EINER; Hassan Noaune. 

